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Differential expression profiles of human primary endothelial cells (HUVECs) from umbilical cords of Gestational Diabetic mothers

ABSTRACT: Primary endothelial cells from umbilical cord vein (HUVEC) obtained at delivery from gestational diabetic (GD) women, represent an expedient model for the study of the effects of chronic HG in vivo. In fetal tissues genome-wide epigenetic changes are likely to occur with specific long term and even trans-generational effects. We have utilized this model to study the effects of chronic hyperglycemia on the transcriptome and to verify the presence of specific epigenetic changes associated to chronic HG in vascular cells.

ORGANISM(S): Homo sapiens

PROVIDER: GSE49524 | GEO | 2013/08/08

SECONDARY ACCESSION(S): PRJNA214103

REPOSITORIES: GEO

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Differential expression profiles of human primary endothelial cells (HUVECs) from umbilical cords of Gestational Diabetic mothers

Project description:Primary endothelial cells from umbilical cord vein (HUVEC) obtained at delivery from gestational diabetic (GD) women, represent an expedient model for the study of the effects of chronic HG in vivo. In fetal tissues genome-wide epigenetic changes are likely to occur with specific long term and even trans-generational effects. We have utilized this model to study the effects of chronic hyperglycemia on the transcriptome and to verify the presence of specific epigenetic changes associated to chronic HG in vascular cells. HUVEC cells from Umbilical cords of 3 Caucasian Gestational Diabetes women were compared with HUVEC cells from umbilical of from 3 Caucasian non diabetic women matching for age and Body Mass Index. [sample collection] Umbilical cords were obtained from 3 Caucasian Gestational diabetes women (diagnosed not later than 28 th gestational week - gw) and from 3 Caucasian non diabetic women matching for age and Body Mass Index (BMI). All pregnants signed an informed consent. All donors were normotensive, and underwent a 100 g 3 hours Oral Glucose Tolerance Test (OGTT) between the 24 -34th gw. Each woman performed a 7 points-blood glucose monitoring on 3 days at week 34 -36th gw.

2013-08-08 | E-GEOD-49524 | biostudies-arrayexpress

Increased endothelial inflammation, sTie-2 and arginase activity in umbilical cords obtained from gestational diabetic mothers.

Project description:ObjectiveThe aim of this study was to determine subclinical inflammation in umbilical vein derived endothelial cells (HUVECs) obtained from Asian Indian subjects with gestational diabetes (GDM) and to determine levels of angiogenic factors and arginase activity in their cord blood.MethodsThis case-control study included 38 control and 30 GDM subjects. Subjects were confirmed as GDM based on 75g oral glucose tolerance test (OGTT) conducted in the second trimester of pregnancy. Angiogenic markers and arginase activity were measured in cord blood by ELISA and colorimetric methods respectively. Endothelial inflammation was assessed through adhesion of PKH26-labelled leukocytes onto HUVEC monolayer obtained from the study groups. Gene and surface expression of adhesion molecules were confirmed via reverse transcription polymerase chain reaction (RT-PCR) and flow cytometry respectively.ResultsThe study revealed increased adhesion of leukocytes to HUVECs isolated from GDM subjects compared to controls. HUVECs of babies born to GDM mothers had increased surface and mRNA expression of E-selectin. sTie2 levels were significantly higher in the cord blood for GDM subjects (3869 ± 370 ng/L) compared to controls (3045 ± 296 ng/L). Furthermore, arginase activity was higher in cord blood of GDM mothers as opposed to the control group (7.75 ± 2.4 µmoles of urea/ml/hour vs 2.88 ±0.49 µmoles of urea/ml/hour; p-value= 0.019). Spearman's correlation analysis revealed positive correlation of cord blood arginase activity with glucose intolerance (?=0.596, p=0.004) and post load glucose values (?=0.472, p=0.031) of mothers observed during the second trimester of pregnancy.ConclusionsHUVECs derived from Asian Indian GDM mothers, exhibit signs of sub-clinical endothelial inflammation along with increased levels of sTie2 and arginase activity in their cord blood serum.

| S-EPMC3869849 | biostudies-literature

Proteomic analysis of S-nitrosylation in HUVECs

Project description:HUVECs stimulated with HG+oxLDL or Mannitol+nLDL were subjected to the biotin-switch assay to enrich the S-nitrosylated proteins, the S-nitrosylated proteins were resolved by SDS-PAGE and gels were silver stained. Mass spectrometry was conducted to determine proteins with S-nitrosylation.

2021-06-03 | PXD025295 | Pride

Environmental Factors Influence the Epigenetic Signature of Newborns from Mothers with Gestational Diabetes

Project description:Here we investigated the degree by which epigenetic signatures in children from mothers with obesity or gestational diabetes mellitus are influenced by environmental factors. We profiled the DNA methylation signature of whole blood from lean, obese and gestational diabetes mellitus mothers and their respective newborns. DNA methylation profiles of mothers showed high similarity across groups, while on the contrary, newborns from GDM mothers showed a marked distinct epigenetic profile compared to newborns of both lean and obese mothers. Analysis of variance in DNA methylation levels between newborns showed higher variance in the GDM group. Our work suggest that environmental factors, rather than direct transmission of epigenetic marks from the mother, are involved in establishing the epigenetic signature associated with GDM.

2019-08-22 | GSE128289 | GEO

Gestational Age-Dependent Changes in Gene Expression of Metabolic Enzymes and Transporters in Pregnant Mice

Project description:Knowing the gene expression profiles of drug-metabolizing enzymes and transporters throughout gestation is important for understanding the mechanisms of pregnancy-induced changes in drug pharmacokinetics. In this study, we compared gene expression of drug-metabolizing enzymes and transporters in the maternal liver, kidney, small intestine, and placenta of pregnant mice throughout gestation by microarray analysis. Specifically, we investigated cytochrome P450 (Cyp), UDP-glucuronosyltranserase (Ugt), and sulfotransferase (Sult), as well as ATP-binding cassette (Abc) and solute carrier (Slc) transporters. We found that relatively few Ugt and Sult genes were impacted by pregnancy in maternal tissues and placenta. Cyp1a2, most Cyp2 isoforms, Cyp3a11, and Cyp3a13 in the liver were down-regulated, with the greatest changes occurring on gestation days (gd) 15 and 19 compared to non-pregnant controls (gd 0). However, Cyp2d40, Cyp3a16, Cyp3a41a, Cyp3a41b, and Cyp3a44 in the liver were induced throughout pregnancy. Cyp expression in mid-gestation placenta (gd 10 and 15) was generally greater than that in term placenta (gd 19). There were also notable changes in Abc and Slc transporters. Abcc3 in the liver was down-regulated by 60%, and Abcb1a, Abcc4, and Slco4c1 in the kidney were down-regulated by 30-60% on gd 15 and 19 versus gd 0. Abcc5 in the placenta was induced 3-fold on gd 10 versus gd 15 and 19, whereas Slc22a3 expression in the placenta on gd 10 was 90% lower than that on gd 15 and 19. Overall, this study demonstrates important gestational age-dependent expression of drug-metabolizing enzymes and transporter genes, which may have mechanistic relevance to human pregnancy. Ninety pregnant mice at gestational days 0, 7.5, 10, 15, and 19 (n = 5-6 per gestational age) were used for the maternal liver, kidney, small intestine and placenta. The placentas were collected on gestational days 10, 15, and 19.

2013-10-08 | E-GEOD-41438 | biostudies-arrayexpress

Gestational Age-Dependent Changes in Gene Expression of Metabolic Enzymes and Transporters in Pregnant Mice

2013-10-08 | GSE41438 | GEO

Gestational choline supplementation improves cross-generational mood by epigenetic upregulation of Nr3c1

Project description:Gestational choline supplementation improves cross-generational mood by epigenetic upregulation of Nr3c1

| PRJNA328805 | ENA

Transcriptome dataset of two different adipose tissues in gestational diabetes patients.

Project description:Using next generation RNA sequencing (RNA-seq), this study evaluated the whole transcriptome of subcutaneous (SC) and omental (OM) adipose tissues from patients with gestational diabetes (GD) and healthy matching controls that were collected during cesarean delivery (C-section). Results show a strong separation of the transcriptomic profiles based on anatomical location and reveal specific RNA expression patterns unique to GD patients

2021-11-18 | GSE188799 | GEO

Methylome analyses by Infinium MethylationEPIC assay from umbilical cord and placenta samples of mothers with or without obesity before pregnancy and mothers with and without gestational obesity

Project description:Maternal obesity before and during pregnancy may have an effect on the offspring outcomes. Epigenetic modifications, such as DNA methylation, might mediate this association by causing changes in gene expression. The study tried to find epigenetic marks in umbilical cord and placenta samples related to unfavourable outcomes in the offspring that could be used as biomarkers.

2023-12-31 | GSE192812 | GEO

Gestational diabetes mellitus alters placental structure, efficiency, and plasticity

Project description:The hemochorial placenta provides a critical barrier at the maternal-fetal interface to modulate maternal immune tolerance and enable gas and nutrient exchange between mother and conceptus. Pregnancy outcomes are adversely affected by gestational diabetes mellitus (GDM); however, the effects of GDM on placental formation, and subsequently fetal development, are not fully understood. In this report, streptozotocin was used to induce hyperglycemia in pregnant rats for the purpose of investigating the impact of GDM on placental formation and fetal development. GDM caused placentomegaly and placenta malformation, decreasing placental efficiency and fetal size. Elevated glucose disrupted rat trophoblast stem (TS) cell differentiation in vitro. Evidence of altered trophoblast differentiation was also observed in vivo, as hyperglycemia affected the junctional zone transcriptome and interfered with intrauterine trophoblast invasion and uterine spiral artery remodeling. When exposed to hypoxia, rats with GDM showed decreased proliferation and ectoplacental cone development on gestation day (gd) 9.5 and complete pregnancy loss by gd 13.5. Furthermore, elevated glucose concentrations inhibited TS cell responses to hypoxia in vitro. Overall, these results indicate that alterations in placental development, efficiency, and plasticity could contribute to the suboptimal fetal outcomes in offspring from pregnancies complicated by GDM.

2020-07-07 | GSE144276 | GEO

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